What is the primary energy that powers a car

If two different theories describe experimental observations equally well, can one be said to be more valid than the other (assuming both use accepted rules of logic) ?

What are some important words in the subject of science that have to do with matter.

When a hole is made in the side of a container holding water, water flows out and follows a parabolic trajectory, similar to an object in projectile motion. If the container is dropped in free fall, the water flow: a. goes out in a straight line b.

Which of the following terms are needed to completely describe speed? Check all that apply. A. Units B. Direction C. Number D. Mass

An aircraft executes a horizontal loop at a speed of 720km/hr with its wings banked at 150. What is the radius of the loop

If a wave were to hit a flexible, moveable surface what will it do?

How powerful is 4kj?

A series of steps that allows someone to conduct an experiment are called a

A coach is hitting pop flies to the outfielders. if the baseball (m = 145 g) stays in contact with the bat for 0.04 s and leaves the bat with a speed of 50 m/s, what is the average force acting on the ball?

The two major ways to transfer charge between two objects are